10 LF860-DNRS-FS

Item Number: F683109
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$46,128.49
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 10 inch
  • Weight: 1440.0 lb
  • Lead Free: Yes (wetted surface < 0.25% lead)
  • Shutoff Valves: Domestic Non-Rising Stem (NRS)
  • Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® advanced epoxy coating
  • Relief Valve Seat: Stainless steel
  • Flood Detection: Integrated flood sensor with SentryPlus Alert® technology
  • Maximum Working Pressure: 175 PSI
  • Temperature Range: 33°F - 140°F

Description

The 10 inch Lead Free MasterSeries® LF860 Reduced Pressure Zone Backflow Preventer is engineered for high hazard/toxic backflow prevention in potable water systems. It features a durable ductile iron body with patented ArmorTek® advanced epoxy coating for superior corrosion resistance and stainless steel internal components for extended reliability. This assembly includes domestic non-rising stem (NRS) shutoff valves and an integrated flood sensor with SentryPlus Alert® technology to detect water discharges. Lead Free construction ensures compliance with low lead installation requirements. With a maximum working pressure of 175 PSI, it's suitable for continuous operation between 33°F and 140°F.

Help Me Connect

Flood Sensor Connectivity

  • The integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve.
  • To activate the sensor's alert relay function, an add-on connection kit is required.
  • Connection kit options include direct integration with Building Management Systems (BMS), cellular communication, or the Sensor Control Monitor which enables integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.
  • Without a connection kit, the flood sensor is a passive component and will not communicate with other devices.
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Additional Details

This 10 inch Lead Free MasterSeries® LF860 Reduced Pressure Zone assembly is designed to protect potable drinking water systems from backpressure and backsiphonage conditions in high hazard/toxic applications, commonly found in industrial installations.

Construction & Materials

  • The assembly features an epoxy coated ductile iron body, domestic non-rising stem (NRS) resilient seated gate valves, test cocks, spring-loaded check valves, and a pressure differential relief valve.
  • The ductile iron body is fused with patented 3-part ArmorTek® epoxy coating, applied to internal and external surfaces for advanced protection against both microbial-induced corrosion (MIC) and exposed metal substrate corrosion.
  • Internal components include a stainless-steel relief valve seat and stainless-steel check components for maximum performance, durability, and extended valve life.
  • Lead Free construction ensures wetted surfaces contain less than 0.25% lead by weight.

Flood Detection

  • An integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve.
  • An add-on connection kit is required to activate the flood sensor and enable it to relay multichannel alerts for potential flooding events. Connection kit options include Building Management Systems (BMS), cellular communication, and the Sensor Control Monitor for integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.

Features

  • Stainless steel relief valve seat and stainless steel check components for maximum performance and durability
  • Inline serviceable assembly; no special tools required
  • Captured modular spring assembly
  • Reversible and replaceable discs
  • Field replaceable seats
  • Ductile iron valve body design
  • ArmorTek coating technology to resist corrosion of internals
  • Modular and repairable pressure differential relief valve
  • Clapper check assembly
  • Captured O-ring design
  • Sensor on relief valve for flood detection, activated by add-on connection kit for BMS or cellular network communication

Specifications

  • Size: 10 inch
  • Type: Reduced Pressure Zone Assembly
  • Lead Free: Yes (wetted surface < 0.25% lead)
  • Flow Orientation: Horizontal

Materials

  • Main Valve Body: Ductile iron Grade 65-45-12
  • Relief Valve Body: Ductile iron Grade 65-45-12
  • Coating: ArmorTek powder coating, applied to internal and external surfaces
  • Shutoff Valves: NRS resilient wedge gate valve AWWA C509 (Standard)
  • Check Seats: Stainless steel
  • Relief Valve Seat: Stainless steel
  • Disc Holder: Stainless steel
  • Elastomer Disc: Silicone
  • Spring: Stainless steel
  • Clamp: AWWA C606 (10" only)

Pressure & Temperature

  • Maximum Working Pressure: 175 PSI (12.1 bar)
  • Minimum Working Pressure: 20 PSI (1.4 bar)
  • Hydrostatic Test Pressure: 350 PSI (24.1 bar)
  • Hydrostatic Safety Pressure: 700 PSI (48.3 bar)
  • Temperature Range: 33°F - 140°F (0.5°C ~ 60°C) continuous

Certificates & Approvals

  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
  • ASSE 1013 Listed
  • UL Classified (US & Canada)
  • FM Approved
  • IAPMO
  • AWWA Standard C511 Compliant
  • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange
  • CSA B64.4
  • NSF Certified to NSF/ANSI 61-G

FAQs

What is this product primarily used for?

This Lead Free MasterSeries® LF860 Reduced Pressure Zone assembly is used to protect potable drinking water systems against backpressure and backsiphonage conditions, specifically for high hazard/toxic applications in industrial settings.

Does this backflow preventer include shutoff valves?

Yes, this assembly is fitted with domestic non-rising stem (NRS) resilient seated gate valves, which comply with AWWA C509 standards.

What is ArmorTek® coating?

ArmorTek® is a patented three-part advanced epoxy system applied to the ductile iron body. It is designed to reduce microbial-induced corrosion (MIC) and protect exposed metal surfaces both internally and externally.

How does the flood sensor function?

The integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve. To activate the sensor and enable alert notifications, an add-on connection kit is required.

Is this product safe for potable water?

Yes, this backflow preventer features Lead Free construction, meaning that the wetted surfaces of the product contain less than 0.25% lead by weight, making it suitable for potable drinking water systems.

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